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Black-holes are considered to be theoretical laboratories for testing models of quantum gravity. It is usually believed that any candidate for quantum gravity must explain the microscopic origin of the Bekenstein-Hawking ($S_{_{\rm BH}}$)…

广义相对论与量子宇宙学 · 物理学 2010-05-12 S. Shankaranarayanan

We aim to provide a microscopic explanation of observed 4D black holes based on the compactification of 5D Einstein gravity plus a positive cosmological constant on a circle. The framework of the dimensional reduction in this work allows us…

高能物理 - 理论 · 物理学 2026-03-10 Cao H. Nam

Using the corrected expression of Hawking temperature derived from the tunneling formalism beyond semiclassical approximation developed by \emph{Banerjee} and \emph{Majhi}\cite{beyond}, we calculate the corrected entropy of a high…

高能物理 - 理论 · 物理学 2009-10-31 Tao Zhu , Ji-Rong Ren , Ming-Fan Li

We show that a geometrical notion of entropy, definable in flat space, governs the first quantum correction to the Bekenstein-Hawking black hole entropy. We describe two methods for calculating this entropy -- a straightforward Hamiltonian…

高能物理 - 理论 · 物理学 2016-09-06 Curtin Callan , Frank Wilczek

We compute logarithmic corrections to the black hole entropy $S_{\rm bh}$ in a holographic set up where the cosmological constant $\Lambda$ and Newton's constant $G_D$ are taken to be thermodynamic parameters, related to variations in bulk…

高能物理 - 理论 · 物理学 2022-07-07 Aritra Ghosh , Chandrasekhar Bhamidipati , Sudipta Mukherji

We calculate logarithmic corrections to the Bekenstein-Hawking entropy for three-dimensional BTZ black hole with J=0 and Kerr-de Sitter (KdS) space with J=0 including the Schwarzschild-de Sitter (SdS) solution due to thermal fluctuations.…

高能物理 - 理论 · 物理学 2010-04-05 Y. S. Myung

We know that sub-leading corrections to the hawking area law is riddled with issues which have some convergent and divergent aspects. Depending on the theory, scheme, model or even method sub-leading terms turn out to have trivial and non-…

综合物理 · 物理学 2012-08-30 Suhail Ahmad , Sharf Alam

Calculations of black hole entropy based on the counting of modes of a quantum field propagating in a Schwarzschild background need to be regularized in the vicinity of the horizon. To obtain the Bekenstein-Hawking result the short distance…

广义相对论与量子宇宙学 · 物理学 2015-06-15 Michele Arzano , Stefano Bianco , Olaf Dreyer

The one-loop contribution to the entropy of a black hole from field modes near the horizon is computed in string theory. It is modular invariant and ultraviolet finite. There is an infrared divergence that signifies an instability near the…

高能物理 - 理论 · 物理学 2009-10-28 Atish Dabholkar

Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking (black hole) entropy, which relates the entropy to the cross-sectional area of the black hole horizon. Using generalized…

广义相对论与量子宇宙学 · 物理学 2015-03-30 Abdel Nasser Tawfik , Eiman Abou El Dahab

Euclidean gravity method has been successful in computing logarithmic corrections to extremal black hole entropy in terms of low energy data, and gives results in perfect agreement with the microscopic results in string theory. Motivated by…

高能物理 - 理论 · 物理学 2013-10-15 Ashoke Sen

Local higher-derivative corrections to the Einstein-Hilbert action yield sub-leading corrections to the Bekenstein-Hawking area law. Here we show that if the quantum effective action comprises a certain class of infrared non-localities, the…

高能物理 - 理论 · 物理学 2023-04-03 Alessia Platania , Jaime Redondo-Yuste

Quantum black holes within the loop quantum gravity (LQG) framework are considered. The number of microscopic states that are consistent with a black hole of a given horizon area $A_0$ are counted and the statistical entropy, as a function…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Alejandro Corichi , Jacobo Diaz-Polo , Enrique Fernandez-Borja

Black hole entropy is a robust prediction of quantum gravity with no established phenomenological consequences to date. We use the Bekenstein-Hawking entropy formula and general-relativistic statistical mechanics to determine the…

广义相对论与量子宇宙学 · 物理学 2020-10-23 Eugenio Bianchi , Anuradha Gupta , Hal M. Haggard , B. S. Sathyaprakash

Entropy plays a crucial role in characterization of information and entanglement, but it is not a scalar quantity and for many systems it is different for different relativistic observers. Loop quantum gravity predicts the…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Daniel R. Terno

Here we study the effects of the Generalized Uncertainty Principle in the tunneling formalism for Hawking radiation to evaluate the quantum-corrected Hawking temperature and entropy for a Schwarzschild black hole. We compare our results…

广义相对论与量子宇宙学 · 物理学 2013-10-14 Barun Majumder

We argue that the statistical entropy relevant for the thermal interactions of a black hole with its surroundings is (the logarithm of) the number of quantum microstates of the hole which are distinguishable from the hole's exterior, and…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Carlo Rovelli

Black holes whose near-horizon geometries are locally, but not necessarily globally, AdS$_3$ (three-dimensional anti-de Sitter space) are considered. Using the fact that quantum gravity on AdS$_3$ is a conformal field theory, we…

高能物理 - 理论 · 物理学 2009-10-30 Andrew Strominger

We compute the logarithmic correction to black hole entropy about exponentially suppressed saddle points of the Quantum Entropy Function corresponding to Z(N) orbifolds of the near horizon geometry of the extremal black hole under study. By…

高能物理 - 理论 · 物理学 2015-06-18 Rajesh Kumar Gupta , Shailesh Lal , Somyadip Thakur

Symmetry based approaches to the black hole entropy problem have a number of attractive features; in particular they are very general and do not depend on the details of the quantization method. However we point out that, of the two…

高能物理 - 理论 · 物理学 2009-11-07 Olaf Dreyer , Amit Ghosh , Jacek Wisniewski